I just recently purchased a home with a pretty extensive ADT security system already installed. I currently have a Smart Things hub connected to a few lights, thermostat, etc, but was wondering if I could get the existing ADT door, window, and motion sensors to connect to my Smart Things hub.

I would much rather monitor from my Smart Things app, than pay a monthly fee to ADT.

Pretty new to the Smart Things environment, but am decently tech savvy. Any help pointing me in the right direction would be much appreciated.